Butterfly-gate.



E. H. MARTIN.

BUTTERFLY GATE. APPLICATION FILED JUNE 6. 1914.

1, 147, 1 1 2. Patented July 20, 1915.

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COLUMBIA PLANOORAPH 50.. WASHINGTON, D. C

E. H. MARTIN.

' BUTTERFLY GATE. APPUCATION FILED JUNE 6. 1914.

1,147,,1 1 2. T Patented July 20, 1915.

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BUTTERFLY GATE.

Specification of Letters Patent.

Patented July 20, 1915.

Application filed June 6, 1914. Serial No. 843,480.

To all whom it may concern Be it known that I, EDWARD H. MARTIN, a citizen of the United States, residin at Colfax, in the county of Placer and i tate of California, have invented new and useful Improvements in Butterfly-Gates, of which the following is a specification. p

The invention relates to an improved gate for use with canals, flumes or the like, and serves to provide for a material saving of time and labor in operating the gate, whereby in the use of the gate as a waste gate a material advantage is gained.

The main object of the present invention is the provision of means'whereby the gate may be operated in a vertical direction to free it from its holding means and then rotated to open the outlet providing a type of gate known as a. butterfly gate, with the operating means arranged to insure speedy action and a perfect control A further object of the invention is the provision of means whereby the gate may be locked with relation to its abutments when in closed position, thereby reducing leakage to the minimum.

The invention in the preferred form of t details will be described in the following specification, reference being had particularly to the accompanying drawings, in which Figure 1 is. a view in elevation illustrating the improvement in itspreferred form.

Fig. 2 is a section on the line 2-2 of Fig. 1, a portion of the flume being broken away. Fig. 3 is a plan of the form illustrated in Fig. 1. Fig. 5 is a detail shown in plan illustrating the means of swinging the gate. Fig. 4 is a section on the line 4l4t of Fig. 1. Fig. 6 is a broken sectional view illustrating a means for securingthe gate in closed position tojprevent leakage. Fig. 7 is a broken elevation illustrating a modified means for locking the gate in closed posi tion. Fig. 8 is a section online 8-8 of Fig. 7. i y

In the illustration of the improvement, I have shown the gate designed for use as a waste gate, and while the description will be confined thereto, it is to be understood that I contemplate the use of the details with any type of outlet gate for which they may be adapted.

1- represents a waste box ofiset from the fiume proper 2, the wall 3 of the waste box being'formed with an outlet opening 4. extendingvertically thereof. The opening t hasa marginal frame including uprights 5 and a bottom strip 6, one of the uprights extending inwardlv bevond the marginal edge of the opening to serve as a gate abutment. The opposing wall of the opening is provided on the inner side with a strip 7 which overlies the adjacent edge of the opening to serve as the opposing abutment, theproximate operating face of the abutments 5 and 7 being offset equal to the thickness of the gate, it being understood that the abutments act in opposition on the gate permitting the latter to swing in one direction and to prevent it from swinging in the opposite direction.

The gate proper comprises an imperforate sheet 8 preferably of metal, having a longitudinal and transverse dimension corresponding to that of the opening 4. The gate is rotatably supported by a pivot rod 9' which throughout the greater portion of the gate is fiat as at ,10 to permit it to be riveted or otherwise secured to the gate. The rod extends below the gate as at 11, and is rotatably and slidably mounted in a bearing opening 12 formed in the block 13 underlying and secured to the cross frame strip 6, the latter being channeled at 1 1 to permit passage of the pivot rod. The cross strip 6 acts as a bottom abutment for the gate so that when the gate is in its lowered position it is held between one of the abutments, in this instance 7,.and the bottom strip 6, so that the gate is prevented from movement on its pivotal connection.

An operating or upper framing designated by 15 is supported upon apost 5, said framing including spaced bars 16 arranged above and transversely of the gate. The

proximate surface of these bars are proof suiiicient size to accommodate said lifting element. The lower end of the element is formed to provide annular enlargement 21, which is held between the plates 18 whereby the lifting element is permitted rotary movement but prevented from independent longitudinal movement. The lifting element is provided with an operating member 22, which may be in the form of a wheel, rod or other connector whereby the lifting element may be turned. At an appropriate point the extension 13 of the pivot rod is formed with a recess 23, and the upper end of the lifting element is notched at 24 so that when the notch and recess register, there is provided an opening for the reception of a key 25 by which the lifting element and pivot rod may be locked against independent rotation. A cap 26 is provided which may be passed down over the pivot rod and encircle the upper portion of the sleeve to prevent lateral displacement of the key when the latter is in looking position.

In operative or closing position, the gate is at its lowest limit of movement seated against the respective abutments 5 and 7 and in rear of the cross strips 6, whereby it is held in position to close the opening. In operating the gate to open it the'lifting element is rotated which by means of the threaded connection with the pivot rod will cause the gate to rise until the lower edge is above the upper edge of the cross piece 6. At this time, the opening 24 is in line with the recess 23, whereupon by the insertion of the key 25 and the application of the cap 26, the lifting element and rod are locked together so that the gate may be swung on the pivot rod by means of the operating member 22, whereupon the openings are free fo the outlet of the water.

If desired the section 18 of the pivot rod may be extended and squared as at 27 to slidably receive a segment 28 having a rack section 29, an operating shaft 30 being mounted upon suitable support and carrying a pinion 31 for the cooperation with the rack and the crank handle 32, whereby the shaft may be operated. This structure provides a simple means for shifting the gate on the pivot rod to open and closed position subsequently to the gate being raised by the lifting element.

In Fig. 6 I have illustrated a means whereby the gate may be clamped in closed position to reduce leakage to the minimum,

in position will tend to reduce leakage to the minimum.

In Figs. 7 and 8, I have shown a slightly modified means to insure a sealing of the gate when in closed position, such means including a projection37 extending from the frame bars 5 and preferably beveled on the inner surface as at 38. The edges of the gate are formed with notches 39 which when the gate is in closed position are arranged below the projection and when the gate has been elevated to clear the cross bar 6 are disposed in line with the projection so that the gate may be swung on its pivot. The beveled edge of the projection serves to force the gate into closed contact with the abutments when the gate has been moved to fully closed position, thereby tending to seal the connection.

That is claimed is 1 I 1. An outlet gate for fiumes and the like including a gate having an initial vertical movement and a subsequent rotary movement, means carried by the flume structure for preventing swinging movement of the gate in one direction, independent means for locking the gate against swinging movement in either direction, means for initial elevating the gate, and means for utilizing the elevating means for subsequently swinging the gate.

2. The combination with a fliune structure or the like, of anoutlet gate mounted so as to have an initial vertical movement and a subsequent rotary movement, an elevating member adapted in operation to elevate the gate, and means for locking said member with relation to the gate to permit utilization of the member as means for swinging the gate.

3. The combination with a flume or the like, of an outlet gate adapted to have an initial vertical movement and a subsequent rotary. movement when opening, a pivot rod therefor, an elevating member having threaded connection with the pivot rod and means for locking the elevating member with relation to the rod.

4.. The combination with a flume or the like, of an outlet gate adapted to have an initial vertical movement and a subsequent rotary movement when opening, a pivot rod therefor, an elevating member havingthreaded connection with the pivot rod, said mem ber and rod being formed with cooperating recesses, and a key adapted to be inserted in said recesses to lock the elevating member and rod against independent movement.

5. The combination with a flume, of an outlet opening, opposing abutments on opposite edges of said opening, a cross bar at the lower edge of the opening, a gate arranged to have an initial upward movement and a subsequent rotary movement, said gate normally bearing against theabutments and the cross bar, a pivot rod secured to the gate, 1 In testimony whereof I 'affix my signature an elevatlng member having threaded conin presence of tWo Witnesses. nection With the rod, means for securing said member against other than rotative EDWARD MARTIN movement, and means for locking the mem- Witnesses:

her and the rod in a predetermined relative HENRY J. RODNEY,

position of the rod and member. HENRY LOBNER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

